答复

1. 
   Brian Pontolilo|Dec 08, 2018 06:49am|#1

   菲尔，

   由于您已经在屋顶甲板上方和下方都有绝缘材料，因此它像您想将这些区域视为大教堂天花板一样接缝。而且，尽管您的阁楼空间可能无条件，瞥了一眼您的计划，但似乎最容易将其带入条件空间。请记住，有了您必须处理的所有这些棘手的过渡，空气密封是您的首要任务。我敢肯定，有一些成员有更多的经验来详细介绍这些领域。

   As far as sound proofing, I know that lots of people use insulation as sound proofing, and it works, to some degree, depending on the type and density of the insulation, but there are better methods, including gaskets and channels that are part of the drywall assembly that help stop sound transmission, that you can use, depending on how it is for the space to be really quiet.

   以下是几个链接应该有帮助的：

   //m.etiketa4.com/article/how-to-to-build-an-sust-cathedral-ceelly

   https://www.finehomebuilding.com/2007/01/01/the-quest-for-a-quiet-room

1. 
   菲尔·布特尔（Phil Boutelle）|Dec 08, 2018 11:23am|#3

   谢谢布莱恩。我的空气密封层位于建筑物信封的护套水平，并在过渡区域有一些内部喷雾泡沫。如果我将它们视为未通风的大教堂天花板，那么我只需要保持泡沫与蓬松的最小R比率即可。2英寸如果我的CZ中的封闭牢房应覆盖。对于蓬松的蓬松，我是否需要将其靠在喷雾泡沫上，也许是在after子下面的网？还是可以放松空间？

   对于声音来说，它主要在阁楼（走廊的一部分）和卧室之间。

2. Expert Member
   Zephyr7|2018年12月8日上午10:32|#2

   I have a similar space above my kitchen. I have 5.5” or closed cell SPF on the underside of the sheathing, and nothing above. I left the space empty and it basically behaves as a soffit. I’ve had no problems.

   关于隔热材料，您想隔热什么？屋顶上的雨噪音？隔热材料可将声音从一个区域或房间传输到另一个区域。如果噪声源在同一房间内，则在干墙上放置隔热材料不会使房间更安静，您需要声音“陷阱”，因为它们几乎在住宅建筑中从未使用过（它们往往是丑陋的）。

   如果目的是限制声音传输，请使用密集的产品。矿物羊毛声音绝缘效果很好。更好的是，使用弹性通道将干墙悬挂，以将其从螺柱/afters中解脱。最好的是这两件事的混合物，再加上5/8英寸X型干墙的双层，并在两者之间进行绿色胶水。将“隔热材料”视为三件事：阻止声音的障碍（这意味着重型质量（如5/8英寸），是一种吸收层，以吸收使它通过屏障（矿物质羊毛和绿色胶）的原因，并且诸如弹性通道之类的去耦元件，以限制结构模因之间的声音传播。双螺柱墙还有助于限制声音传输。

   Insulating for sound is different than insulating for heat. If you can let us know what you’re trying to achieve with the sound insulation you may get more detailed ideas.

   Bill

1. 
   菲尔·布特尔（Phil Boutelle）|2018年12月8日上午11:25|#4

   Thanks Bill for those great details. As noted in my response to Brian, for sound, it’s mostly between ithe loft (part of the hallway) and the bedroom, so between two spaces. I can try one of those approaches you noted.

1. Expert Member
   Zephyr7|Dec 08, 2018 11:45am|#5

   根据您要花多少钱，我会这样做：
   1- use 5/8” drywall on the walls you want to insulate for sound
   2- fill the wall cavities with the mineral wool insulation made for soundproofing
   升级：
   3- hang the drywall using resilient channel
   4-使用5/8英寸干墙的双层和绿胶之间的双层

   我总是将步骤1和2作为最低限度。在声音绝缘有效性中，下一个大跳跃将使用弹性通道。与其他步骤相比，步骤4可能是最小的爆炸，但这会有所帮助。

   确保使用腻子纸密封所需隔音的墙壁上的所有电箱。隔音墙需要像空气隔间一样详细地详细说明 - 任何缝隙都会“泄漏”声音。

   Bill

3. 
   菲尔·布特尔（Phil Boutelle）|2018年12月13日上午12:20|#6

   I'm hoping to revisit this thread. The key question for me: on the detail attached to the first post in this thread, if the blue shaded spaces are insulated (enough to prevent condensation), can they be closed up for good? Or do I need to either feed them with an HRV supply/exhaust, or add vents to make them part of the living space? I'd rather not do either of these, unless it will cause a mold or other problem down the line.

   Note that my whole-house air seal is outboard of wall and roof sheathing. If these spaces need to be air sealed as well, I could do that. I guess if they aren't air sealed to the living space, then technically they are part of the living space...?